Add transfer speed benchmark

[tellet-q]

1. workflow accepts dataset_name (i.e 'h-and-m-2048-angular-filters'), qdrant_versions ('ghcr/dev,docker/v1.16.3') and some params for Hetzner machines (cluster_nodes, region, server_type, client_type)
2. workflow spins up Hetzner machines (1 client and provided number of servers)
3. for each of the provided qdrant_versions workflow runs an ansible playbook:
   3.1 ansible starts qdrant cluster on server machines (template config is in docker-compose-cluster.yaml)
   3.2 ansible downloads dataset on client machine (if not already there)
   3.3 ansible runs benchmark script
   3.4 ansible pushes data into our benchmark database
4. workflow cleans up Hetzner machines

Example run: https://github.com/qdrant/vector-db-benchmark/actions/runs/21354519289